Re: [Talk-GB] Oxford UK 1:2500 O/S maps from 1958: copyright status of in-house copies?
Tim Waters (chippy) wrote: > 2009/2/14 Andrew Chadwick (mailing lists) : >> I really wish warper allowed you to stitch multiple uploads from the >> same source together into a scrollable, WMSable whole by tag or somesuch. > > Great idea, and it's in the pipeline :-) Cool! Feel free to use the stuff I've uploaded as test material - it's largely contiguous, probably as a result of having come from the same neglected map drawer :) Guess I'll have to start exhorting people to spend time cropping the maps too so that they slot together without too much ugly overlap. Tags generally would be nice things to have so that links can be shared. -- Andrew Chadwick ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Oxford UK 1:2500 O/S maps from 1958: copyright status of in-house copies?
2009/2/14 Andrew Chadwick (mailing lists) : > Thomas Wood wrote: >> I've begun rectifying some of them by eye, but it really should be >> possible to transform them, since they are maps with a grid in a known >> projection (OSGB36, I assume).. >> All we theoretically need to do is map the image pixels to OSGB refs, >> then let a tool rectify them to whatever projection we want. > > Thanks for that - I made a little Perl script for doing the four > corners, http://osm.pastebin.com/f3fa44b1a , so all I'd have to do is > manually locate the corresponding corners on the original. Using > Geo::Coordinates::OSTN02 should make that as accurate as possible. > > The 1km square images are so big I'm having to crop and shrink them into > (NW, NE, SW, SE) quarters and upload them separately. Feed in a 4-figure > square ref like "SP5206" and it'll spit out the WGS84 (GPS) coordinates > of the four points at the corners for each one of these slices. Hope > that makes sense! > > I really wish warper allowed you to stitch multiple uploads from the > same source together into a scrollable, WMSable whole by tag or somesuch. Great idea, and it's in the pipeline :-) Tim ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Oxford UK 1:2500 O/S maps from 1958: copyright status of in-house copies?
Thomas Wood wrote: > I've begun rectifying some of them by eye, but it really should be > possible to transform them, since they are maps with a grid in a known > projection (OSGB36, I assume).. > All we theoretically need to do is map the image pixels to OSGB refs, > then let a tool rectify them to whatever projection we want. Thanks for that - I made a little Perl script for doing the four corners, http://osm.pastebin.com/f3fa44b1a , so all I'd have to do is manually locate the corresponding corners on the original. Using Geo::Coordinates::OSTN02 should make that as accurate as possible. The 1km square images are so big I'm having to crop and shrink them into (NW, NE, SW, SE) quarters and upload them separately. Feed in a 4-figure square ref like "SP5206" and it'll spit out the WGS84 (GPS) coordinates of the four points at the corners for each one of these slices. Hope that makes sense! I really wish warper allowed you to stitch multiple uploads from the same source together into a scrollable, WMSable whole by tag or somesuch. -- Andrew Chadwick ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Oxford UK 1:2500 O/S maps from 1958: copyright status of in-house copies?
On 14 Feb 2009, at 15:14, Andrew Chadwick (mailing lists) wrote: > So my question is: does in-house (no doubt _licensed_) copying at an > unknown time affect copyright status as far as OSM is concerned, and > does running off paper copies from microfilm at an unknown time, from > film (re)published at an unknown time (but with apparently acceptably > dates for the original) affect whether we can make copies for tracing > into OSM? Just an armchair non-expert on copyright law here, but according to the UK Copyright Service's factsheet on derivative works: http://www.copyrightservice.co.uk/copyright/p22_derivative_works.en.htm "to be subject to copyright the creation of the derivative work must itself be an original work of skill, labour and judgement; minor alterations that do not substantially alter the original would not qualify." - which would suggest that purely mechanical reproductions of an original work don't receive copyright protection in themselves, and as long as the original is out of copyright then there's no problem with deriving data from them. - Matt ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
Re: [Talk-GB] Oxford UK 1:2500 O/S maps from 1958: copyright status of in-house copies?
2009/2/14 Andrew Chadwick (mailing lists) : > I'm uploading (to http://wrp.geothings.net/ ) a bunch of large-scale > maps found in a drawer by University Estates Directorate staff who very > kindly let me use their scanner to make digital copies after checking > their copyright status to a first approximation. I'll probably need some > helpers for the tedious business of rectifying later on, will update on > talk-gb for that. I've begun rectifying some of them by eye, but it really should be possible to transform them, since they are maps with a grid in a known projection (OSGB36, I assume).. All we theoretically need to do is map the image pixels to OSGB refs, then let a tool rectify them to whatever projection we want. -- Regards, Thomas Wood (Edgemaster) ___ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-gb
